Are health states "timeless"? The case of the standard gamble method

被引:32
作者
Bala, MV
Wood, LL
Zarkin, GA
Norton, EC
Gafni, A
O'Brien, BJ
机构
[1] McMaster Univ, Dept Clin Epidemiol & Biostat, Ctr Hlth Econ & Policy Anal, Hamilton, ON L8N 3Z5, Canada
[2] Centocor Inc, Malvern, PA 19355 USA
[3] Res Triangle Inst, Ctr Econ Res, Res Triangle Pk, NC 27709 USA
[4] Univ N Carolina, Sch Publ Hlth, Dept Hlth Policy & Adm, Chapel Hill, NC USA
[5] St Josephs Hosp, Ctr Evaluat Med, Hamilton, ON, Canada
[6] McMaster Univ, Dept Clin Epidemiol & Biostat, Hamilton, ON, Canada
关键词
QALYs; standard gamble; utility independence;
D O I
10.1016/S0895-4356(99)00074-8
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
The standard gamble method, as currently recommended for use in health care program evaluation, provides an individual's preference score or "utility weight" for living in a given health state for the rest of the individual's life. Many researchers interpret this value as a time-independent or "timeless" one and order health states on a scale of zero (death) to one (full health), regardless of the time spent in the health state. This article examines whether preference scores for a severe pain health state are "timeless," or in other words whether the utility independence assumption is satisfied. Our study results suggest that for the majority of respondents, the preference scores are not independent of time. J CLIN EPIDEMIOL 52;11:1047-1053, 1999. (C) 1999 Elsevier Science Inc.
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页码:1047 / 1053
页数:7
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